The acquisition will help Sony ramp up its online content offerings: it is now planning to establish a new cloud service based on Gaikai's platform in order to provide "immersive interactive entertainment experiences".

However, in early June, Fortune reported that the cloud-based game streaming company hired bankers to help it find a buyer and expected a deal "well in excess" of $500 million.

"We're honored to be able to help Sony rapidly harness the power of the interactive cloud and to continue to grow their ecosystem, to empower developers with new capabilities, to dramatically improve the reach of exciting content and to bring breathtaking new experiences to users worldwide," Perry said in a statement on Monday.

The deal will close subject to regulatory approval, although a date for the completion of the deal is not yet known.